초록 ▼

A variable arc sprinkler may be set to numerous positions along a continuum to adjust the arcuate span of the sprinkler. The sprinkler includes a nozzle body and a valve sleeve that helically engage each other to define an arcuate slot that may be adjusted at the top of the sprinkler to a desired ar

A variable arc sprinkler may be set to numerous positions along a continuum to adjust the arcuate span of the sprinkler. The sprinkler includes a nozzle body and a valve sleeve that helically engage each other to define an arcuate slot that may be adjusted at the top of the sprinkler to a desired arcuate span. The sprinkler may include a flow rate adjustment device that may be adjusted by actuation or rotation of an outer wall portion of the sprinkler. Rotation of the outer wall portion may cause a throttle control member to move axially to or away from an inlet, or may cause one or more restrictor elements to open or close, to control the flow rate of the sprinkler.

대표청구항 ▼

What is claimed is: 1. A rotating stream sprinkler comprising:a deflector having an underside surface contoured to deliver a plurality of fluid streams generally radially outwardly therefrom through an arcuate span, the deflector defining a bore; anda nozzle body defining an inlet, an outlet, a cent

What is claimed is: 1. A rotating stream sprinkler comprising:a deflector having an underside surface contoured to deliver a plurality of fluid streams generally radially outwardly therefrom through an arcuate span, the deflector defining a bore; anda nozzle body defining an inlet, an outlet, a central hub, and a valve sleeve, the inlet capable of receiving fluid from a source, the outlet capable of delivering fluid to the underside surface of the deflector, the central hub defining a bore and an internal helical surface; and the valve sleeve defining an external helical surface that adjustably engages the internal helical surface of the central hub to form an arcuate slot that is adjustable in size to determine the arcuate span;wherein the valve sleeve is rotatable through at least 180 degrees, rotation causing the external helical surface of the valve sleeve to traverse the internal helical surface of the central hub and adjust the size of the arcuate slot by at least 180 degrees; andwherein the valve sleeve is rotatable through substantially 360 degrees for adjustment of the size of the arcuate slot by substantially 360 degrees.